Liquid-dispensing device.



J DBSMOND.

LIQUID DISPENSING DEVICE.

APPLIOATION FILED AUG. 19, 1912.

Patented Mar. 31, 1914,

1| Illll. I l l l l l l l l l l l l l l Il UNTTED sTATEs PATENT OFFICE.

JOHN DESMOND, 0F WILMETTE, ILLINOIS, ASSIGNOR TO WILLIAM S. POTWIN, 0F CHICAGO, ILLINOIS.

LIQUID-DISPNSING DEVICE.

Specification of Letters Patent.

Patented Mar. 31, 1914.

Application led August 19, 1912'. Serial N o. 715,743. d

To all whom it may concern Be it known that I, JOHN DESMOND, a citizen of the United States, re'siding at Wilmette, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Liquid-Dispensing Devices, -of which the following is a speci-fication.

My invention relates to improvements inliquid dispensing devices and has for its general object to improve the structure of such devices for increased convenience, reduction in cost of construction, and efiicienoy in operation.

`Another object of my invention is to improve the construction to the end that it may operate advantageously to project the fluid either in a spray or in a solid stream by operation of a manually movable part carried in proper position on the device, all parts being such that they are of maximum simplicity and durability, whereby the device is structurally and functionally satisfactory for use wherever liquid is to be projected from a portable container.

Other and further objects of my invention will become apparent to those skilled in the art from a consideration of the following description of an embodiment thereof taken in conjunction with the accompanying drawing, wherein- Figure 1 y is a view of a side elevation showing some of the parts in section, with the needle valve of the nozzle in closed position; Fig. 2 is an enlarged section of the valve and nozzle in relative position to project the liquid in a solid stream; Fig. 3 is a section on line 3 3 of Fig. 2; and Fig. 4 is an end elevation of the interior member of the nozzle shown in section in the other figures.

In the drawings, 5 indicates the liquid container or receptacle proper, preferably of cylindrical shape with the dispensing end dome-shaped, said receptacle having in its side a suitably closed opening through which the receptacle may be lled said opening and appurtenant parts being indicated at 6. One end of the receptacle, preferably, provides a head member 7 and the other end has an interiorly screw-threaded opening, the wall of the receptacle being preferably somewhat enlarged around said opening to provide a boss, as at 8, for better engagement therein of the nozzle to be described.

nent part of the device, for operation to compress air within the receptacle whereby 4 the liquid therein may be forcibly projected throu h the nozzle when opened, and, as an expedient to reduce the necessary number and cost of parts and for other structural advantages, I arrange the pump so that its cylinder may constitute the handle of the device in operative association with which I arrange a manually movable part for opening and closing the nozzle valve.

Specifically, 9 indicates the cylinder of an air compressing pump, the piston rod 10 of which carries a hand knob 11 for operation of the pump.

12 indicates a supporting arm for the pump, secured to the receptacle, as at 13, and bored as at 14 for communication between the receptacle and the pump cylinder. At the pump-supporting end of the arm 12, spring 15 is provided in a suitable bore, such spring pressing the ball valve 16 against the valve seat 17 in plate 18. The plate 18 is removably inserted in the bottom of threaded counterbore 19 in the arm 12, and the end of the cylinder is threaded for engagement with said threads of the counterbore 19.

20 indicates a supporting member for the other end of the pump cylinder, said member being secured to the receptacle and surrounding the cylinder for support thereof in obvious fashion. 'Ihus it will be seen that the pump cylinder is supported at the end of the receptacle, parallel to and somewhat spaced from the head thereof, so that it may constitute the handle for the receptacle and that it may be easily removed for access to and removal of the valve parts 15, 16, 17.

The head 7 is centrally perforated, as at 21, and provided with a stuiiing box 21 for passage therethrough of a rod 22 having at its outer end a knob 23 to be grasped by the fingers of that hand of the operator which supports the receptacle by means of the cylinder 9, as heretofore described, and to retain the rod yieldingly in innermost position, I provide a collar 24 thereon between which and the head 7 of the receptaclea compression spring 25 is arranged. The end of the rod 22 1s formed to provide the movable valve for the nozzle, and for this purpose is provided with a reduced portion 26 and an end tapering as at 27 to constitute the needle valve for the nozzle. The nozzle is such as to provide tangential passageways to the space through which the needle valve of the nozzle passes, and for convenience I construct the nozzle of two interconnecting parts. i Y

Specifically, 28 indicates an outer member, engaged by the interior threads in the enlarged portion or 'boss 8 of the receptacle, and having a discharge opening 29, with tapering walls 29', the slant of such walls with respect to the axis of the nozzle being greater than that of the end 27 of the needle valve. The outer member 28 is counterbored as at 30 and provided with interior screw-threads 31 for engagement of the interior member 32 of the nozzle. The .interior member 32 lis shaped to be screwed into Y the counterbore 30 of the outerv member 28 the inner member is threadedI for engagement with the threads 31 in the counterbore. This threaded portion 33 is provided with longitudinal grooves 341-34. It will be seen that when the interior member 32 is screwed Y into the counterbore 30 until the end of member 32 contacts with the inner wall of the exterior nozzle member just radially beyond the tapering surface 29', the Alongitudinal grooves 34 afford communication between the receptacle and the space which lies between the exterior member 28 and interior member 32 of the nozzle, the contact between the end of the interior member against the end wall of the exterior member preventing low of liquid from said space to the open- Iing 29 except `through tangential passageways to be hereafter explained.

The nozzle member 32Ais provided with an inwardly extending sleeve, 35, surrounding rod 22, the bore of the sleeve being flared at its inner end as at 35 to permit passage of liquid around rod 22 when said rod is fully retracted to bring its reduced portion 26 within the iared portion 35 of the sleeve as shown in Fig. 2, the Hared portion further acting to center the rod in its return movement. At its outer end, adjacent port 29, the member 32,preferably has a bore of diameter approximately equal to that of the tapering walls 29 where said tapering walls join the' end wall of the counterbore 30, so that there is thus provided around the Vneedle valve an annular space the outer end of which tapers toward the nozzle port or opening. The wall 37 of the member 32, which separates saidannular space 36 from the space between member 32 and interior of nozzle member 28 (said latter space as heretofore described comini- A member 32, to the end o said member 32.

The rod 22 of course practically closes the central bore of sleeve 35, so that the onlyl communication between the receptacle and the nozzle opening 29 is by way of the tangential passageways 38. A

The use and operation of the device is as follows: The liquid to be dispensed is first put into the receptacle 5 through the inlet 6 partially to fill the receptacle and said inlet tightly closed, spring 25 of course maintaining the nozzle closed by pushing the needle valve 27 into the'port 29, as shown in Fig. 1. The'pump is then operated by forcing the knob 11 back and forth, the ycheck valve ball 16. being forced backwardly against its retaining spring 15 on the in-stroke and being pushed closed thereby. on the out-stroke, until sufficient air has been pumped into the receptacle to produce the desired pressure on the liquid contained therein. The receptacle may now be grasped by means of cylinder 9, which constitutes the handle, and the nozzle pointed toward the object against which it is desired to project the liquid, the lingers of the hand which grasps the cylinder 9 being extended'behind the knob 23 which, through rod 22, operates the needle valve of the nozzle. When the rod is pulled outwardly a relatively small distance, to leave a very narrow annular space open around the tapered point of the needle, the pressure behind the liquid forces it through grooves 34 into the space 30 therebeyond and thence through the tangential openings 38, into the annular space 36 around the needle valve. The entry of the liquid into this annular space tangentiallyv of course results in rotation of the liquid in said space, and l have found that the liquid in escaping from the narrow annular opening around the partly retracted needle after passing between the tapering surfaces 27 of the needle and 29 of the nozzle member, is, on account of this rotation, very effectively discharged in a spreading coneshapedA film which breaks the liquid up in very ne particles and effectively coats with a spray any object toward which the nozzle is pointed. Upon furtherpretraction of the needle completely to open the nozzle outlet 29 and permit flow of liquid into space'36 by way of the flared portion 35', as shown in Fig. 2, the space 36 is filled with liquid and the pressure behind it projects it through the unobstructed opening 29 in a straight solid stream. When the knob 23 is allowed to reof spring 25, the nozzle is closed for operation again, for relling, or for renewed operation of the pump 11 (by the other hand of the operator, only one hand being necessary to hold the receptacle, point it in the desired direction, and operate the nozzle).

It will be apparent that the device above described may be used in many sorts of work where the dispensing of liquids, either in a thin spray or in a solid stream, is desired. For instance, in spraying trees, where the operator is required to climb high up in the branches and cannot safely use two hands to operate a sprayer, and in many other environments which will be apparent to those requiring such devices, my dispensing device maybe used with enhanced convenience to the operator and effectiveness in results. Further, it will be apparent that my invention contemplates the improvement of such devices structurally by correlating the various parts so that they may all be of sim le and durable construction without sacriiiice of eiiciency.

While I have herein described a single embodiment of my invention, it will be apparent that numerous changes-may be made therein Without departing from the spirit of the invention and within the scope of the appended claims.

What I claim is:

l. A device of the character described comprising a valve having portions of different diameter, and a nozzle having an axially bored member having y tangential openings leading to said axial bore at one end, said axial bore being fiared at the other end, whereby the movement of the narrowed portion of thevalve into said flared portion of the nozzle effects direct axial discharge of fluid and whereby movement of the larger portion of said valve into the portion of said axial bore which is of normal diameter effects the discharge of fluid through said tangential openings.

2. A device of the character described comprising a valve having a tapered end, and a nozzle comprising an exterior member having an interiorly threaded counter bore and a tapering axial discharge opening from said counter bore, and an interior member having an axial openingto receive said valve, a threaded portion for engagement of the threads of said counter bore, a narrowed portion at its outer end to provide an annular space distinct from said axial bore, said interior member providing longitudinal passageways into said annular space and tangential passageways from said annular space to said axial bore, adjacent said tapering discharge opening of the exterior member.

In testimony whereof I hereunto set my hand in the presence of two witnesses.

' JOI-IN DESMOND.

In the presence of- FoRE BALN, MARY F. ALLEN. 

